Great Plains 9756PP Operator Manual - Manual (Page 23)

Great Plains Manufacturing, Inc. Operating Instructions 19
02/17/2014 580-043M
Depth Stop
Refer to Figure 9 .
33. Once the machine is level and set to the desired depth,
set the depth stop at the front of the machine to
ensure that the unit will operate at a consistent depth
every pass. After setting the stop, if a change of depth is
desired, 1 full turn of the handle
either in or out will
change the depth approximately 1/4” up or down respec-
tively.
Note: If after setting the depth stop, the detent on the tractor
kicks out before the stop contacts the button on the
depth stop, slow the hydraulic flow speed down. If this
problem persists, contact the factory service represen-
tative for other possible adjustments. On tractors with a
timed detent setting, set the detent so when you raise
the machine, the pump will run for 1/2 to 1 full second
after full raise. If it runs longer than this, damage to the
seals of the lift cylinders may result. If the problem still
persists, contact the factory service representative for
the possible adjustments.
Note: Do not try to adjust the rebound valve without contact-
ing the factory service rep.
Wheel Arm
Refer to Figure 10
34. If the tire
on the outside wings , on models 9533,
9744 and 9748, are riding in loose or already worked
ground and running too deep, you can correct the prob-
lem by moving the wheel arms
to the optional position
as shown. Start by lowering machine to ground until
wheel arm pins
are loose. Remove both wheel arm
pins , rear cylinder arm bolt , and rod end cylinder
pin . Switch the RH and LH wheel arms side to side
and move wheel arm linkage over to inside lug on
front of frame. Re-install all pins and bolts to secure. This
will move the tires
inward 5” to let wings run level.
1
2
Figure 9
Depth Stop Adjustment
42250
3
1
2
3
2
Figure 10
Wheel Arm
41347
1
4
4
3
6 5
7
1 2
3
4
4 5
6 3
7
1